Machine for



.w e e.

S D R A H .G I Du H U J m o M 0 MACHINE FOR APPLYING PASTE.

No. 572,373. Patented Dec. 1, 1896.

Wdnesse-s' d ioa fw (No Model.) 3 Sheets-She9t 2.

' .F. H. RICHARDS.

MACHINE FOR APPLYING. PASTE. No. 572,373 Patented Dec. 1,-1896.

Jnven for:

L I v i g! (No Model.)

3 Sheets She t 3. F. H. RICHARDS. MACHINE FOB. APPLYING PASTE.

Patented Dec. 1, 1896.

- Inna d0;

wiiness asz fi/ffik w n s Prjsns 00., Pna'io-irmu wASNmaTox n c UNIT DSTATES- PATENT OFFICE.

FRANCIS H. RICHARDS, or HARTFORD, CONNECTICUT.

MACHINE FOR APPLYING PASTE.

SPECIFICATION forming part of Letters Patent No. 572,373, dated December1, 1896.

Application filed April 23, 1896.

To all whom, it may concern;

Be it known that I, FRANCIS H. RICHARDS, a citizen of the United States,residing at Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inMachines for Applying Paste, of which the following is a specification.

This invention relates to improved means for supplying or forcing astream of paste or analogous composition or astream of fluid of likecharacteristics into position for use, and is more particularlydesignated as a pastesupply apparatus; and the object of the inventionis to provide an apparatus of this character, embodying therein feedingmechanism in the nature of a force-feed device or pump disposed inposition at the delivery side of the outlet of the paste-reservoir,whereby the paste or other composition can be continuously anduninterruptedly forced into the desired position; and a further objectof the invention is to provide an apparatus which is simple inconstruction and effective in operation and capable of being quickly andeasily assembled and disassembled, and in which the supply of thecomposition can be regu-.

lated to permit a larger or smaller stream to be obtained.

In the drawings accompanying and forming part of this specification,Figure 1 is a front view of this improved apparatus, shown part-1ybroken away, and illustrating the same diposed in posit-ion on a portionof a framework of the machine, and also showing a web of suitablematerial, such as paper,

.7 is a view of a detail hereinafter described.

Similar characters designate like parts in all the figures of thedrawings.

This improved paste-supply apparatus will in practice be preferablydisposed in position adjacent to the particular character of ma- SerialNo. 588,790. (No model.)

chine. with which it is to be used, and it is therefore herein showndisposed in a part of the framework of a machine carrying a suitable webof paper 150, to which the composition is to be applied; but it will beunderstood, however, that the apparatus may be secured in position onany suitable support and be used to supply the composition to anydesired material to which such composition is applicable; and theapparatus comprises, in a general way, a reservoir, (designatedgenerally by A,) means (designated in a general way by B) for holdingthe paste under pressure, means in the nature. of a force-feed device orpump (designated in a general way by O) for supplying or feeding thepaste to the material, and means (designated in a general way by D) forregulating the supply to permit a large or small stream to be obtained.

This improved apparatus is herein shown supported upon a portion of theframework 10 of the machine, as before stated, which framework comprisesthe fixture 12 and the endless conveyer or belt carrying table 13,secured thereto by suitable arms or brackets 14, and which table isherein shown slightly below the plane of the supporting-surface of suchfixture 12.

Disposed on the table is suitable means for guiding or pressing the web150 on the endless belt 100, which belt may be carried by any means, andwhich guiding meansis herein shown as a pressure-roller 15, preferablyincased in rubber and eccentrically journaled on a suitable shaft 16,extending from the fixture 12 and adjustable by means of a nut or otherdevice, whereby the pressure of said roll can be regulated.

The paste-supply apparatus, in the preferred form thereof herein shownand described, comprises a reservoir A, supported on the fixture 12, andwhich reservoir is in the nature of a tank 17, adapted to contain thepaste.

The means herein shown for maintaining the paste under pressurecomprises a suitable piston 18, disposed in the tank and provided withthe usual packing 19, preferably cupshaped. and secured thereto by asuitable clamp-plate 20 and nut 21. The piston is provided with apiston-rod 22, preferably of slightly-smaller diameter adjacent to itsupper end than the main portion of said piston, thereby forming a neck23, and said rod is also provided with an annular flange or collar 24for the purpose hereinafter set forth and with a suitable handle orhand-wheel 25 above said neck. The preferred means for holding thispiston in engagement with the paste, and thereby maintaining a constanttendency of the composition to flow from the tank, comprises aspring-actuated gear mechanism operatively connected with the piston andsupported adjacent to the tank by any preferred means, and in theconstruction of apparatus shown this supporting means is illustratedintegrally connected with the tank, whereby the tank and supportingmeans may, if desired, comprise one structure (shown in the nature of acasting 200) removably and adjustably supported in position, although itwill be evident that this is not necessary, as the tank and gearmechanism may be removably disposed on the fixture 12 in any othersuitable way for adjustment. In this construction, however, the fixture12 is provided with a dovetail way 26 and the casting with a dovetailedchannel or groove 27, fitting said way, the casting being securedthereon, when adjusted, by means of the clamp-screw 28.

The spring-actuated gear mechanism comprises in its preferred form arack slide or bar 29, sliding in a suitable way 30 of the casting 200and located in parallelism with the piston-rod 22. This rack-slide hasan arm 31 at its upper end, carrying a bifurcated sleeve 32, having acountersunk portion or annular recess 33, in the bifurcation of whichsleeve the neck 23 of the piston-rod is received.

As a means for actuating the rackbar and also holding the piston inengagement with the paste a gear-wheel 34 is disposed 011 the castingand is preferably carried within a closed casing 33 and fixedly securedon a shaft or stud 35, journaled in a hub 38, carried by one of thewalls of said casing, and which gear-wheel has its teeth in mesh withthe teeth of the rack-slide 29.

As a means for pressing the rack slide downward by means of the gear aspring 36 is preferably carried by and has one end thereof fixedlysecured to said hub, the opposite end thereof being secured to the gearby a pin or screw 37 or other suitable fastening device. In thisconstruction that wall of the casing which carries the hub of thegear-wheel is constructed to form a removable cap 39, secured to thecasing by means of suitable screws or other fastening devices. Byturning the cap, and thereby the hub with the spring fastened thereto,before the insertion of the fastening devices said spring will be placedunder the desired tension. It will be obvious, however, that the cap maybe provided with suitable elongated openings 39', through which thefastening devices 40 pass, whereby said cap can be readily turned byloosening the fastening devices instead of removing the same, asheretofore described. A cap provided with such openings 39 is shown inFig. 7, and said cap may be furnished with a recess or recesses 39 forreceiving a suitable lever 39, by which it may be turned to adjust thetension of the spring, the bolts 40 being, of course, tightened when thedesired adjustment shall have been obtained. Any other suitable devicemay be substituted for the spring as a means for forcing the pistondownward under yielding pressure, if deemed desirable.

Secured to the outer end of the shaft 35 is a suitable handle,preferably in the nature of a lever 41, whereby the gear-wheel can beactuated to move the rack upward, to thereby withdraw the piston fromthe reservoir or to release the pressure of the same on the paste. wardby the action of the spring and gearwheel, the countersunk or recessedpart 33 of the bifurcated sleeve engages the collar or flange 24 of thepiston-rod 22, and thereby prevents the said rod from moving out of itsproper position.

The reservoir or tank is provided at its lower portion with any suitablemeans for carrying the conduits and feed and regulating deviceshereinafter described-such, for instance, as an extending apron orbracket 45, preferably integral with said tank, although it may beremovably secured thereto, if desiredand said tank is also provided witha paste-outlet 46 at the bottom thereof, opening at the upper end of thebracket or apron and communicating with and practically forming a partof a conduit or channel 52, formed in the bracket, and which conduit 52leads to the paste-feeding mechanism hereinafter specified.

A suitable sieve or strainer 47 is disposed in position in the bottom ofthe tank to eX- tend over the paste-outlet 46, and for which purpose thetank is provided with an annular recess 48, in which the rim of thestrainer fits. This strainer or sieve is provided with a handle 49,whereby it can be quickly and easily withdrawn when the piston isremoved. By means of this strainer the clogging or choking of the outletand the conduits (hereinafterspecifie'd) by lumps or foreign matter inthe composition is prevented.

In order to supply or force the paste or composition to the web of paperor other material, suitable feeding mechanism is provided in the natureof a force-feed mechanism, device, or pump disposed in any desiredposition adjacent to the delivery side'of the reservoir-outlet 46,whereby the composition will be regularly and continuously forced intothe desired position, and while this forcefeed device may comprise anysuitable means or mechanism disposed adjacent to such reservoir-outletand adapted to accomplish the purpose desired it is shown in thisconstruction in its preferred form as a rotary force-feed When therack-slide is forced downmechanism or pump preferably consisting of apair of intermeshing gears 50 and 51, disposed in a countersunk orrecessed part of the bracket or apron and preferably adjacent to thelower end thereof, and one of which gears is disposed to intersect theconduit or channel 52. One of'these gears, preferably the lower one, as51, is carried by a suitable stud 53., journaled in the bracket or apron45 and also in a removable cap, (hereinafter described,) while the othergear, as

50, is fixedly secured to a shaft 54:, journaled in the bracket or apron4:5, and which shaft is in this construction shown extending in the rearof the table 13, and is provided with a squared or polygonally shapedend 55, adapted to enter a similarly-shaped socket or recess 56 in theend of a rotary driving-shaft 57, .journaled in the fixture, and whichshaft carries at the opposite end thereof a suitable power-transmittingor driving wheel or pulley 58, (shown adapted to receive a belt 59,leading to any desired source of power, although it may be driven in anywell-known way,) whereby said shaft is rotated, and thereby the gears,to force the paste regularly and continuously to the web of paperorother material on the table.

In communication with and practically constituting a continuation of thechannel or conduit 52, by means of the recess in which the gear 51rotates, is a second conduit or feed-channel 60, leading into positionabove the web of material on the table, and which conduit is formed by arecess 61 on the apron or bracket 45, one wall of which recess, as 62,constitutes a fixed lip 63, another lip being formed by the regulatingmeans about to be described.

As a means for regulating the supply of paste to the material and tothereby permit a larger or smaller stream to be forced into position foruse a regulating device is provided, which, in its preferred form,comprises a lever 65, mounted to have its lower end constitute the otheror movable lip 66 of the mouth or nozzle of the conduit or channel 60,and this lever is herein shown pivoted adjacent to one end in the recess62 of the bracket or apron, although it may be otherwise arranged, andis provided with a recess 67 at one side thereof, adapted to receive asuitable adjusting means or device, (herein shown as a threaded spindle68 and an adjustable and removable thumb-piece 68,) and which spindleextends. through said recess 67 and enters the side wall of the bracket,

whereby the lever can be adjusted into various positions to increase ordiminish the size of the mouth or nozzle. A suitable spring 69 (shownpreferably helical) is interposed between the side wall of the bracketor apron and thelever 65, to thereby hold the same in position, and theadjusting device is shown provided with a stop-collar or abutment 70 tolimit the movement thereof,

The lever 65 is shown provided with a finger-piece 65 in order tomanipulate the same,

if necessary, and is cut away'adjacent to'its secure the same inposition and also constitute one wall of the feed-channels a removableclosure or cap 71 is secured relativelyto the face of the bracket orapron by suitable fastening devices, such as thumb-screws 72-. It isobvious, however, that other meansv op erable on the same principlemight be substituted for said lever without departing from the scope ofmy invention.

In the use of this improved apparatus the lever or handle 41 is actuatedto operate the gear-wheel 34 and thereby move the rackslide 29 upward,together with the piston, so that the same can be removed from the,reservoir-tank. The paste or composition is then placed in the. tank andthe piston replaced therein, whereby by means of the spring 36 saidpiston will exert a constant pressure on the paste, to thereby force thesame through the strainer and into the conduits to the feedingmechanism, which is placed in rotation by the driving-shaft 57, and bymeans of which the paste will be regularly supplied or forced throughthe channel or conduit 60 to the web of paper or other material, alongthe edge thereof, as said material is moved beneath the same by theendless conveyer or belt 100, and in caseany obstruction or foreignsubstance passes through the strainer and is too large to be forcedthrough the mouth or feed-nozzle the spring 69 of the regulating-leverpermits said lever to be forced back to allow the passage of such matterand thus preventthe clogging of i the feed-passages.

In the use of this improved apparatus the paste, which is preferably ina semifluid condition, can be constantly, regularly, and uninterruptedlyforced or supplied in any desired size of stream to the web of paper,and the various parts of the apparatus can be quickly and easily takenapart to cleanse the same or for other purposes. I

It will be observed that the force-feed tinctly to be understood thatany suitable device for this purpose disposed in the same relation tothe reservoir is within the purview of myinvention. 1

Havingdescribed my invention, I claim- 1. The combination withareservoiradapted to contain paste, said reservoir having an outlet; ofa force-feed device located adjacent to said outlet at the delivery sidethereof, said device being constructed to apply a continuous stream ofpaste to the material under treatment and a feed-channel through whichthe paste is forced in a thin stream by said device.

2. The combination with a reservoir adapted to contain paste, saidreservoir having an outlet; of a rotary force-feed device at thedelivery side of said outlet; and a feed-channel through which a thin,continuous stream of paste may be forced by said feed device.

3. The combination with a reservoir adapted to contain paste, and abracket or apron extending from the reservoir and having a conduitcommunicating therewith, of a force feed device carried by the bracket;and a feed-channel through which a thin, continuous stream of paste maybe forced. by said device.

4. The combination with a reservoir having an outlet, of a force-feeddevice for forcing a continuous stream of paste from the reservoir; afeed-channel and means for regulat ing the size of the stream of pasteas it issues from said channel.

5. The combination of a reservoir and a bracket or apron extending fromthe same and containing a conduit communicating with the reservoir, of aremovable force-feed device carried by the bracket and constructed toforce a continuous stream of paste from the reservoir to and u pon thematerial under treatment.

6. The combination with a reservoir having a bracket or apron extendingfrom the same, said bracket having a conduit; of a force-feed devicecarried by the bracket; a feed-channel; and means for regulating thesize of the stream of paste forced through said channel.

7. The combination with a reservoir, of a bracket projecting therefrom,said bracket having a conduit communicating with the reservoir; a pairof gears, constitutinga forcefeed device, removably journaled in saidbracket; and a removable cap for holding said gears in position.

8. The combination of a reservoir having a bracket or apron extendingfrom the same, said bracket having a conduit therein leading from andcommunicating with said reservoir; and feeding mechanism carried by saidbracket adjacent to said conduit, and comprising a pair of feed-gearsadapted to convey a stream of paste into position for use.

9. The combination of a reservoir having a bracket or apron extendingfrom the same, said bracket having a conduit therein leading from andcommunicating with said reservoir; feeding mechanism carried by saidbracket adjacent to said conduit, and comprising a pair of intermeshinggears adapted to convey a stream of paste into position for use; andmeans for rotating said gears.

10. The combination of a reservoir having a bracket or apron extendingfrom the same,

said bracket havinga conduit therein leading from and communicating withsaid reservoir; feeding mechanism carried by said bracket adjacent tosaid conduit, and comprising a pair of intermeshing gears adapted to convey a stream of paste into position for use; and means supported by saidbracket for regulating the size of such stream, and comprising anadjustable device adapted to increase or decrease the size of saidconduit adjacent to the mouth thereof.

11. The combination of a reservoir having a bracket or apron extendingfrom the same, said bracket having a conduit leading from andcommunicating with said reservoir; and an adjustable spring-actuateddevice in position and operative to increase or decrease the size ofsaid conduit adjacent to the mouth thereof, to regulate the size of thestream, and automatically adjustable to permit the passage of foreignmaterial from said conduit.

12. The combination of a reservoir having a bracket or apron extendingfrom the same, said bracket having a conduit therein leading from andcommunicating with said reservoir; feeding mechanism carried by saidbracket adjacent to said conduit, for regularly supplying a stream ofcomposition to the material to be operated on, and comprising a pair ofintermeshing gears; and means adjustably supported by said bracket, forregulating the size of said stream, and comprising a lever pivotallysecured to said bracket; an adjusting device carried by said bracket andengaging said lever; and a spring on said adjusting device intermediatesaid lever and bracket.

13. The combination of a reservoir having a bracket or apron extendingfrom the same, said bracket having a conduit leading from andcommunicating With said reservoir; feed ing mechanism carried by saidbracket adjacent to said conduit, for regularly supplying a stream ofpaste to the material to be operated on; means in position forregulating the size of the stream; and a removable cap secured to saidbracket, for closing said conduit.

14:. The combination of a reservoir having an apron or bracket extendingfrom the same, said bracket having a conduit therein leading from andcommunicating with said reservoir a strainer in said reservoir abovesaid conduit; feeding mechanism carried by said bracket adjacent to saidconduit for regularly supplying a stream of composition to the materialto be operated on, and comprising a pair of intermeshing gear-wheels andmeans for regulating the size of the stream.

15. The combination with a reservoir, of a bracket; a pair of gearsconstituting a force feed device removably journaled in said bracket,one of said gears having a stud projecting therefrom; a driving-shaftengaging said stud; and a removable cap for holding the gears inposition on the bracket.

16. The combination of a reservoir having a bracket or apron extendingbelow the same,

said bracket having a conduit leading from and communicatingwith saidreservoir; feeding mechanism carried by said bracket, and comprising apair of intermeshing gear-wheels adapted to convey a stream ofcomposition into position for use; means for regulating the size of saidstream; a piston in said reservoir and adapted to hold the compositionunder pressure; and spring actuated gear mechanism operatively connectedwith said piston for holding the same in engagement with saidcomposition.

17. The combination of a reservoir; a piston therein; a rack-slidesupported adjacent to said piston and provided with an arm having abifurcated sleeve adapted to receive the rod of said piston and fromwhich it is removable; and a spring-actuated gear in position to engagesaid rack-slide, to thereby hold the piston in engagement with the contents of the reservoir.

18. The combination of a reservoir; a piston therein; a rod connected tosaid piston and having a neck and a collar; a rack-slide in positionadjacent to said reservoir and provided with an arm having a bifurcatedsleeve adapted to receive said neck, and said sleeve having acountersunk or recessed portion adapted to receive said collar; andspringactuated gear mechanism in position to engage said rack.

19. The combination of a reservoir; a piston therein; a rack-slideadjacent thereto and operatively connected with said piston a springactuated gear-wheel supported in position to engage said rack-slide;and means for actuating said gear-wheel, to thereby actuate therack-slide and piston.

20. The combination of a reservoir; a piston therein; a rack-slide inposition and operatively engaged with said piston; a casing adjacent tosaid rack-slide a gear-wheel in said casing and meshing with the teethof said rack-slide; and a spring connected to said gear-wheel and tosaid casing.

21. The combination of a reservoir; a piston therein; a rack-slide inposition and operatively engaged with said piston; a casing supported inposition relatively to said rackslide and having a removable cap; agearwheel supported on a shaft j ournaled in said cap and in position tomesh with said rackslide; and a spring connected to said gearwheel andcap.

22. The combination of a reservoir; a piston therein; a rackslideoperatively engaging said piston; a casing supported in positionrelatively to said rack-slide, and having a removable cap having a hub;a gear-wheel supported on a shaft journaled in said hub and in positionto mesh with said rack-slide; a helical spring carried on said hub andhaving one end thereof secured to said gear-wheel, and its opposite endto said removable cap; and a handle secured to said shaft, formanipulating said gear-wheel and thereby the rack and piston.

23. In combination with a fixture having a driving-shaft; of a reservoirhavinga bracket or apron projecting from the same, said bracket having aconduit therein leading from and in communication with said reservoir;feeding mechanism j ournaled on said bracket, and comprising a pair ofintermeshing gears, one of said gears having its journal in operativeengagement with the driving-shaft, whereby said intermeshing gears willbe rotated.

2a. The combination of a reservoir having a bracket or apron projectingfrom the same, said bracket havinga conduit communicating with saidreservoir and leading therefrom, the side wall of said conduit adjacentto its lower end forming a fixed lip; feeding mech anism carried by saidbracket, and comprising a pair of intermeshing gears, one of said gearsbeing in position to intersect the conduit and convey a stream ofcomposition into position for use; and a lever pivotally supported onsaid bracket and having its lower end formed to constitute an adjustablelip adjacent to said fixed lip, whereby the size of said stream isregulated.

25. The combination of a reservoir; a piston therein; a rod connected tosaid piston and having a neck and a collar; a bifurcated sleeve providedWith a countersunk or recessed portion adapted to receive said collar;and means for supporting said sleeve.

26. In combination with a reservoir and its delivery conduit; aforce-feed device; and a removable cap for holding said device inposition, whereby when said cap is detached the said feed device can bereadily removed.

FRANCIS H. RICHARDS.

Witnesses:

FRED. J. Donn, HENRY BIssELL.

